It's not special, just requires scale for it to make sense. E.g. Cost segregation studies and UPREIT transactions are cheaper on a neighborhood level. And you need enough passive income to absorb the depreciation losses
And the scale applies at every single step of the process. A citizen homebuyer is playing a oneshot game. There are few discounts to be had and every single fee is its own battle.
A corporation/PE is playing a multi-shot game. There are bulk discounts, relationships, and scale that is applied to everything from title insurance and inspections to cost segregations to filing all of the paperwork.
Also if you take a 10% gamble on a strategy to save 50k and it backfires and lands you with a 500k legal bill, that's just the cost of business to a big (or even not that big) company, but it'd be absolutely ruinous to private individuals.